A study of haematemesis in the Oxford area.
D004739:England; D004932:Esophageal and Gastric Varices / Q000150:complications; D006471:Gastrointestinal Hemorrhage / Q000209:etiology / Q000401:mortality; D006396:Hematemesis / Q000209:etiology; D006801:Humans; D013274:Stomach Neoplasms / Q000150:complications